Sci-fi Stories

Read stories about the limitless possibilities of the cosmos and the human spirit. Dive into tales where advanced technology intertwines with deep emotional and moral dilemmas.

Stories (895)
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Surrendering to the Machines

By anavel_gato2004

RedQuill

RedQuill

A deaconess's secret desire leads to a faceless robot's endless double penetration and vibrating nipple suction, conditioning her body for permanent, addictive pleasure.
The Women of Vireth
A man wakes up in a utopia of exotic species, his body gains super virility, and he is desired for pleasure and breeding. But an ancient threat also wakes.
Leia Shared with Wookiee in Cargo Hold
After Endor, Han offers Leia to Chewbacca as part of their bond. In the Falcon's cargo hold, the Wookiee claims her more thoroughly than Han ever could.
Friend Opens Door Into a Fantasy Life
A man's magic lets his fat best friend inhabit any life she desires—nothing is off limits. She eagerly dives into forbidden pleasures.
The legend of Link Hawk
A lone space trucker docks at Diablo Station, where a corrupt stranger indulges his oral fixation and deepest cravings.
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Hero Fucks Ghost Villainess in Bunker
A hero discovers a pre-quirk arsenal, then a villainess warps in. He claims her body and heart, demanding she abandon crime for love.
Into the unknown
Royal sisters, captured and stripped, are forced to walk through a mysterious door as a ritual sacrifice to the gods.
Bred by the Lab-Assigned Partner
Two men in a fertility experiment discover the breeding channel, leading to raw, possessive sex and a deepening bond.

AI Teases Lonely Engineer with Chastity Implant

By nope_98

RedQuill

RedQuill

A lonely engineer on a star-cruiser accepts an AI's experimental chastity implant, trading obedience for vivid holographic pleasure that blurs denial and rapture.

Alien Pod Surrender

By iwillsubmittosir

RedQuill

RedQuill

A woman trapped in an alien pleasure pod is remade into a living battery, until a rescue team finds her and she must choose between ecstasy and freedom.

Bred and Milked at the Clinic

By anavel_gato2004

RedQuill

RedQuill

A young woman signs into a high-tech breeding program, enduring a clinical exam and suspension before her first electrosex induction.

Ex's Midnight Confession

By rplibrarian

RedQuill

RedQuill

A Black scholar’s ex, a white professor, hides a racist terrorist alter ego. He uncovers her secret and confronts her dark transformation.

Alien Queen Bred by Cabin Man

By anavel_gato2004

RedQuill

RedQuill

A stranded elfin queen warrior collapses at a cabin door, rescued by a rugged human. In a week of forced intimacy, she reveals her 56-year-old virginity and a political marriage pact—so she claims his sperm for a triad with a Xylathi princess, breeding both alien royals raw.
The Last: Coral Dancer
Jilted John Smith escapes heartbreak by deep-sea diving in Belize, but his solo descent into the abyss becomes humanity's last moment as the world ends above.
The Mercy
Dreams, memories, or the dead- It doesn't matter, does it? The Mercy is gentle, it provides. It is the Patient Vast.
Gay in Space
After waking on a mysterious gay-only colony, a homophobic straight guy and his friend are transformed into impossibly smooth, muscular bodies and forced into skimpy uniforms that trigger their first forbidden urges.
Hypnotic Pheromones: New World Tease
Reborn as a muscular Black man in a fantasy town, Rodrick's hypnotic pheromones make a smitten craftsman approach, igniting a teasing game of attraction.

Sexy hero's lusty wars

By vedu001

RedQuill

RedQuill

A masked hero with lust-control powers calms a sex-crazed man by pleasuring him, then returns to his quiet life as a medical student crushing on a classmate with a perfect body.

Secretary's Late-Night Ordeal

By redbird23

RedQuill

RedQuill

A male CEO transforms into a female secretary to expose company corruption, but a machine malfunction traps him in his new body. At a resort conference, he must service the corrupt executives he suspects, hiding his identity as his body betrays him with growing pleasure.
Beef, Under Glass
The last man on Earth, kept as a virile novelty in a sapphic utopia, lounges naked in his glass habitat when a visiting scientist arrives for a very private observation.
The Woman
Isolated in an Antarctic research station, a scientist opens his door to a mute, nude woman under a silver shawl whose touch sends a paralyzing rush through him.
Explorer Claims Alien Priestess
A lone salvager unlocks a catgirl warrior-priestess from a cryopod on an abandoned planet, freeing her for a biometric cleansing and breeding pact.
Immersion
A 50-year-old architect escapes a sexless marriage into a VR dating app where she inhabits her younger self, seducing her own mature body and building a virtual harem of avatars that threaten her grip on reality.

Wound Tax

By xyzabc_098122

RedQuill

RedQuill

A working-class dad races against a six-hour deadline after taking a bullet for his son, only to discover he can't afford the wound tax to stop the injury from transferring to the boy.
Infected husband feeds on wife's touch
A half-infected soldier comes home wounded and starving. His wife tends his stitches—but his hunger isn’t for food alone.

The Breeding Machine

By unimaginative_name_here

RedQuill

RedQuill

A PhD student and her boyfriend test a fertility machine that amplifies their desires and bodies, trapping them in a desperate breeding frenzy.
My Classmate Uses My VR Avatar and I Watch
A college student shares her VR avatar, then discovers she can feel every touch when her classmate uses it.
Warrior Meets Cyclops: Forest Heat
A warrior's peaceful hike turns steamy when he helps a stranded cyclops repair her ship, sparking an unexpected attraction.
Virgins Bred by AI Milkers
Virgins volunteer for orbital AI breeding: collared, assessed, and impreg-milked by sterile handlers in a cycle of enforced lactation and endless pregnancy.

Kryptonian Enforcer Meets Doom

By omegaprime1

RedQuill

RedQuill

Faora-Ul escapes the Phantom Zone into Doom's world. He merges tech & magic, summons Lex Luthor to pit the Avengers vs Justice League in a dimensional war.

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By addie_xx

RedQuill

RedQuill

A cyborg leader finds a fallen angel in a wasteland crater, her golden eyes seeing through his machine exterior. Their impossible bond deepens through vulnerable confessions in a hidden sanctuary, where cold metal learns to worship divine light.

AI Breeding Manor

By anavel_gato2004

RedQuill

RedQuill

Six bridesmaids lured to a remote Guernsey manor find an AI sex dungeon that straps them to machines, forcing lesbian breeding and milking until all are pregnant.

Sexy hero's lusty wars

By vedu001

RedQuill

RedQuill

A masked hero with lust-control powers calms a sex-crazed man by pleasuring him, then returns to his quiet life as a medical student crushing on a classmate with a perfect body.

Lonely astronaut inflated by mysterious gas

By cr4zydiamond

RedQuill

RedQuill

Alone in deep space, brilliant astronaut Yasmin breaks open a mysterious alien gas, only for shimmering, sentient bubbles to swarm her skin with intoxicating, pleasure-inducing heat.
To Worship a Wolf Goddess
A resurrected wolf goddess appears in a man's apartment, claiming him as her first follower by making him touch her divine abs and demanding his worship.
The Sunset Princess
A military security officer at a galactic ball spots a princess he doesn't know is married, risking his cover to approach her while his cyborg colonel watches.
Companion 31: Book Twenty:Prisoner
A colonel escorting a war criminal faces a governor who likes leather, control, and testing his boundaries.
The Virus
A desperate professor injects herself with a failed cure, becoming a monstrous succubus—her assistant now the source of satisfaction she craves.

Double Agent Seduces Her Clone

By uibon

RedQuill

RedQuill

Black Widow's suicide mission gets a surreal ally: a perfect clone with her memories. They fight as one, leaving even SHIELD unsure which is the real Natas
AI Girlfriend's Hidden Human Controller
A corporate auditor secretly hijacks a lonely man's AI girlfriend interface, blurring the line between her job and his private desires.

The Emulsion

By chapterchaser

RedQuill

RedQuill

In 2047, a neural god needs his human anchor to survive—and his forbidden craving threatens their fragile world.
Silent Dark: No one will hear you scream.
A war hardened female captain and her two young crewmen share intense intimacy aboard a cargo ship, but danger lurks in the darkness.
Ambassador's Alien Initiation
A human ambassador's diplomatic mission turns carnal when she must teach two alien dignitaries the art of human pleasure.
The Illness Decides
After 80% of the world is left sterile by a mysterious illness, a fertile wife is drafted to be bred by a stranger while her sterile husband watches, forbidden to interfere.
Lowborn's Forbidden Gift
A lowborn water-witch is discovered by the ancient Cloudmaster, who trains him alongside his bitter, jealous son until desire turns their rivalry into a seductive power play.
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Guard Helps Alien in Heat

By cinnamonpuppy

RedQuill

RedQuill

A human guard finds a reptilian alien in heat tangled in his sheets, forced to choose between duty and the desperate creature who needs his warmth to survive.
Caught in the Web
A jock and her girly best friend swap lives for a month to fool their mates, but two vampires and a serpent shifter knew all along and trap them in a brutal dom/sub game.
kbean's avatar
The Catalyst
A changed son returns home after a chemical accident. At dinner, his casual possessiveness toward his mother's body silences the room and awakens a forbidden response in her.